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121
TMessagesProj/jni/third_party/usrsctplib/netinet/sctp_indata.h
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TMessagesProj/jni/third_party/usrsctplib/netinet/sctp_indata.h
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/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
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* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* a) Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* b) Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the distribution.
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*
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* c) Neither the name of Cisco Systems, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#if defined(__FreeBSD__) && !defined(__Userspace__)
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD: head/sys/netinet/sctp_indata.h 365071 2020-09-01 21:19:14Z mjg $");
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#endif
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#ifndef _NETINET_SCTP_INDATA_H_
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#define _NETINET_SCTP_INDATA_H_
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#if defined(_KERNEL) || defined(__Userspace__)
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struct sctp_queued_to_read *
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sctp_build_readq_entry(struct sctp_tcb *stcb,
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struct sctp_nets *net,
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uint32_t tsn, uint32_t ppid,
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uint32_t context, uint16_t sid,
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uint32_t mid, uint8_t flags,
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struct mbuf *dm);
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#define sctp_build_readq_entry_mac(_ctl, in_it, context, net, tsn, ppid, sid, flags, dm, tfsn, mid) do { \
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if (_ctl) { \
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atomic_add_int(&((net)->ref_count), 1); \
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memset(_ctl, 0, sizeof(struct sctp_queued_to_read)); \
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(_ctl)->sinfo_stream = sid; \
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TAILQ_INIT(&_ctl->reasm); \
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(_ctl)->top_fsn = tfsn; \
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(_ctl)->mid = mid; \
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(_ctl)->sinfo_flags = (flags << 8); \
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(_ctl)->sinfo_ppid = ppid; \
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(_ctl)->sinfo_context = context; \
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(_ctl)->fsn_included = 0xffffffff; \
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(_ctl)->sinfo_tsn = tsn; \
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(_ctl)->sinfo_cumtsn = tsn; \
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(_ctl)->sinfo_assoc_id = sctp_get_associd((in_it)); \
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(_ctl)->whoFrom = net; \
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(_ctl)->data = dm; \
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(_ctl)->stcb = (in_it); \
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(_ctl)->port_from = (in_it)->rport; \
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if ((in_it)->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) { \
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(_ctl)->do_not_ref_stcb = 1; \
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}\
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} \
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} while (0)
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struct mbuf *
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sctp_build_ctl_nchunk(struct sctp_inpcb *inp,
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struct sctp_sndrcvinfo *sinfo);
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void sctp_set_rwnd(struct sctp_tcb *, struct sctp_association *);
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uint32_t
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sctp_calc_rwnd(struct sctp_tcb *stcb, struct sctp_association *asoc);
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void
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sctp_express_handle_sack(struct sctp_tcb *stcb, uint32_t cumack,
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uint32_t rwnd, int *abort_now, int ecne_seen);
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void
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sctp_handle_sack(struct mbuf *m, int offset_seg, int offset_dup,
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struct sctp_tcb *stcb,
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uint16_t num_seg, uint16_t num_nr_seg, uint16_t num_dup,
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int *abort_now, uint8_t flags,
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uint32_t cum_ack, uint32_t rwnd, int ecne_seen);
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/* draft-ietf-tsvwg-usctp */
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void
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sctp_handle_forward_tsn(struct sctp_tcb *,
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struct sctp_forward_tsn_chunk *, int *, struct mbuf *, int);
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struct sctp_tmit_chunk *
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sctp_try_advance_peer_ack_point(struct sctp_tcb *, struct sctp_association *);
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void sctp_service_queues(struct sctp_tcb *, struct sctp_association *);
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void
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sctp_update_acked(struct sctp_tcb *, struct sctp_shutdown_chunk *, int *);
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int
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sctp_process_data(struct mbuf **, int, int *, int,
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struct sctp_inpcb *, struct sctp_tcb *,
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struct sctp_nets *, uint32_t *);
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void sctp_slide_mapping_arrays(struct sctp_tcb *stcb);
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void sctp_sack_check(struct sctp_tcb *, int);
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#endif
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#endif
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